Transportation Guide
Getting Around Acadia
You don’t need a car to experience Acadia. The Island Explorer bus reaches most major trailheads for free. Here’s how to get around without the parking headache.
The Island Explorer
The Island Explorer is a free propane-powered shuttle system operated by Downeast Transportation for the national park. Eight routes connect Bar Harbor, all major trailheads, campgrounds, beaches, and the ferry terminal. No reservation required — just show up. Bikes ride free.
The system runs late June through Columbus Day weekend. Hours vary by route but most start running by 8am and run until early evening. The bus frequency is adequate for peak season but plan for 15–30 minute waits during off-peak hours.
Conservation note:
The Island Explorer removes approximately 3 million vehicle trips from Acadia roads each year. Using the bus isn’t just convenient — it’s materially better for the park. Fewer cars means less exhaust on the carriage roads, less parking lot congestion, and lower stress on wildlife near popular trailheads.
Key Routes
| Route | Access |
|---|---|
| Route 3— Sand Beach | Access to Ocean Path, Beehive, Great Head |
| Route 4— Blackwoods | Access to Cadillac South Ridge, Gorham Mountain |
| Route 5— Jordan Pond | Access to Jordan Pond Path, Bubble Rock |
| Route 6— Brown Mountain | Access to carriage road network |
| Route 7— Southwest Harbor | Access to the quiet west side |
| Route 10— Loop Road South | Express loop along Park Loop Road south |
Getting to Mount Desert Island
By Coach Bus
Concord Coach Lines runs daily service from Boston and Portland to Bangor. From Bangor, West’s Transportation runs a seasonal van service to Bar Harbor. This combination is viable if you book in advance and are flexible on timing. The full journey from Boston takes 4–5 hours.
By Air
Bar Harbor Airport (BHB) has seasonal Cape Air service from Boston. Flights are small (9-seat Cessnas), expensive, and weather-dependent — useful if you can get them. Bangor International (BAN) is 1 hour away with better commercial service. Portland (PWM) is 3 hours — viable if you have a connecting reason to be there.
Honest advice about cars
Car-free is genuinely doable in Acadia for most visitors who plan well. But a car expands access significantly: Schoodic Peninsula, the west side of MDI, Isle au Haut access, and off-peak trailheads all benefit from having wheels. If you’re coming from far away and staying more than 3 days, renting a car in Bangor and driving to MDI is often the right call.
Biking
The 45 miles of motor-free carriage roads are the finest cycling in any US national park. Rentals are available in Bar Harbor at Acadia Bike (the best option for carriage road riding) and Bar Harbor Bicycle Shop near the Village Green.
The carriage road network is accessible from Bar Harbor via the Eagle Lake area — a flat 2-mile ride from downtown gets you onto the network. Hybrid bikes with wider tires work best on the crushed-stone surface. Road bikes with narrow tires are not ideal.
Downtown Bar Harbor is compact and walkable — the Village Green, whale watching docks, and most restaurants are within 10 minutes on foot from any accommodation in the town center.